I think I would like a more extensive 'preferences' section. For example, I like being able to right-click on a link, clicking on 'open window in new tab', and then not going straight to that window. This is best for when I'm reading a news article or something and there's many other links that I want to look at too, after I get done reading it. I wish that in Safari we could determine when that window opens.
Also the color scheme thing... lol. I really want to change it. Hurry people who write programs to manipulate other programs! I wish I was that smart.